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Finding the Fourth Proportional to 362,220.10, 543,330.15 and 355,999.30

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Solution

The fourth proportional to 362,220.10, 543,330.15 and 355,999.30 is: 533,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,220.10 : 543,330.15 = 355,999.30 : x
  2. Step 2: Convert to fraction form
    362,220.10/543,330.15 = 355,999.30/x
  3. Step 3: Cross multiply
    362,220.10x = 543,330.15 × 355,999.30
  4. Step 4: Simplify right side
    362,220.10x = 193,425,153,068.90
  5. Step 5: Solve for x
    x = 193,425,153,068.90/362,220.10
  6. Step 6: Final answer
    x = 533,998.95

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.